Getting the Most out of your Hydroponics
It has become difficult to determine what advise about hydroponics is worth listening to. This is in part due to an abundance of useless products on the market as well as naivety surrounding the subject.
Water temperature Your nutrient solution should feel COLD at 21oC NOT WARM. 21 degrees centigrade is the ideal temperature, it's warm enough to stimulate good growth while cold enough to be able to carry the maximum amount of oxygen (O2) for our purposes. As the water rises above this temperature the water can carry less and less oxygen.
Timers on NFT systems Once the roots are out of your 3" cubes or baskets, you should run your nutrient pump 24 hours a day, certainly never have it off for more than 15 minutes at a time, even during lights off. Otherwise brown coloured cell damage may occur on the root surface as the cooling caused by evaporation of moisture off the roots damage it's surface. By running the solution constantly, it can be used to moderate the temperature around the roots.
CO2 and Carbon in your nutrient solution The vegetative leafy part of the plant above the surface feeds on Carbon dioxide. The roots feed on and in association with Oxygen. There is no benefit to putting carbon or carbon dioxide into the nutrient solution on it's own. However some of the additives do contain some carbon based compounds in association with other ingredients.
Nutrient meter reading cF properties of water vary from locations to locations, often dramatically. As such it is impractical to simply state an optimum reading to aim for. cF meters are more useful for maintaining the correct strength on a day to day basis in re-circulating hydroponics systems once the optimum has already been determined. After evaluation of the plants reaction to the strength, small adjustments can also be made using the meter.
Feed strength Not all plants feed the same amount, not even close relatives of the same varieties so don't believe anyone who tells you otherwise! Environmental conditions also affect feeding, more light = more food. As a general guide use 1/4 to 1/2 strength hydroponics nutrient solution for young plants, and to strength for larger plants. Most manufacturers full strength is equivalent to about 1200ppm or cF17 (with water cF 0), this is good for most species and varieties of plants. Some tomatoes may need a bit more, and lettuces would require a chunk less but you realy need to experiment with the specific variety of plant you are using to determine the optimum feed strength.
Leaf colour loss and associated rusty spots These two things, particularly when associated together are usually caused by some environmental factor and NOT a nutrient deficiency. Unless you are seriously underfeeding or overfeeding, the feed strength you use will generally not be the cause. It is more likely to be the light too close, nutrient too warm, not enough air exchange, too cold nights, wind burn, grow room too dry or another environmental factor. Don't always believe the worst and assume that your feed strength is wrong.
Stretching Plants can stretch or elongate. This if often the case where you have too much or not enough light or heat due to the positioning of the bulbs. Or it may be just genetics. There is no single reason that can be pinpointed as the cause of your plants stretching don't believe anyone who tells you there is!
Input Air As a hobby grower, for the best results, ideally use indoor air as input air for your grow room and expel to the outside. Outdoor fresh air inputted into the grow room can cause temperature, humidity and bug problems. Indoor air from a house has a better temperature and higher CO2 content, the extracted air should then ideally leave the building or be extracted to another room or area. Don't assume that input air from outside will be "cleaner" or better for your plants it's simply not the case!
Air Cooled Shades In line fans attached cool shades/ Jetstreams/ air cooled lights must blow through the shade. Sucking air through the shade will NOT work as well at cooling your lamp.
pH Adjustment in re-circulating systems in re-circulating hydroponics systems including gro-tanks and particularly when using systems with rockwool slabs and hard water, the pH will often rise on a daily basis. Don't adjust it right down every day or you may end up with nutrient lock out from excess phosphoric acid. Instead don't be afraid to let it drift up for a day or two, this may be the lesser of the two evils. The plants are fragile and as such will be damaged if you attempt to adjust them. Disturb them as little as possible!
Cold Too cold a nutrient solution or air temperature at night (lights Off) can seriously affect your yield. Your yield will benefit by keeping the temperature at stable 21 C.
Katie BrownDavid Hayes Photography
Contemporary Images Photography Omaha
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Barker Photography San Antonio
Bh Photography New York
Desert Skies Photography
American Photography
Bob Hawkins Photography
Caplin Photography
Black Dog Photography Kansas
Adams Street Photography
David Smith Photography
Debelle Photography
David Glover Photography
Abstract Photography Black White
Chuck Collins Photography
Cupido Photography
Aabbas Photography
Barfield Photography
Craig Anderson Photography
Copyright Photography
Andy Chabot Photography
David Martinez Photography
Deutsche Borse Photography Prize
Cow Photography
Balck White Photography
Cutie Pie Photography
Blind Spot Photography
Black And White Photography Techniques
Aerial Video Photography
Crime Scene Photography Education
Astrophotography Tips
Aerial Photography Houston Texas
Dan Eldon Photography
Ansel Adams Photography Quotes
Ben Fink Shapiro Photography
Water temperature Your nutrient solution should feel COLD at 21oC NOT WARM. 21 degrees centigrade is the ideal temperature, it's warm enough to stimulate good growth while cold enough to be able to carry the maximum amount of oxygen (O2) for our purposes. As the water rises above this temperature the water can carry less and less oxygen.
Timers on NFT systems Once the roots are out of your 3" cubes or baskets, you should run your nutrient pump 24 hours a day, certainly never have it off for more than 15 minutes at a time, even during lights off. Otherwise brown coloured cell damage may occur on the root surface as the cooling caused by evaporation of moisture off the roots damage it's surface. By running the solution constantly, it can be used to moderate the temperature around the roots.
CO2 and Carbon in your nutrient solution The vegetative leafy part of the plant above the surface feeds on Carbon dioxide. The roots feed on and in association with Oxygen. There is no benefit to putting carbon or carbon dioxide into the nutrient solution on it's own. However some of the additives do contain some carbon based compounds in association with other ingredients.
Nutrient meter reading cF properties of water vary from locations to locations, often dramatically. As such it is impractical to simply state an optimum reading to aim for. cF meters are more useful for maintaining the correct strength on a day to day basis in re-circulating hydroponics systems once the optimum has already been determined. After evaluation of the plants reaction to the strength, small adjustments can also be made using the meter.
Feed strength Not all plants feed the same amount, not even close relatives of the same varieties so don't believe anyone who tells you otherwise! Environmental conditions also affect feeding, more light = more food. As a general guide use 1/4 to 1/2 strength hydroponics nutrient solution for young plants, and to strength for larger plants. Most manufacturers full strength is equivalent to about 1200ppm or cF17 (with water cF 0), this is good for most species and varieties of plants. Some tomatoes may need a bit more, and lettuces would require a chunk less but you realy need to experiment with the specific variety of plant you are using to determine the optimum feed strength.
Leaf colour loss and associated rusty spots These two things, particularly when associated together are usually caused by some environmental factor and NOT a nutrient deficiency. Unless you are seriously underfeeding or overfeeding, the feed strength you use will generally not be the cause. It is more likely to be the light too close, nutrient too warm, not enough air exchange, too cold nights, wind burn, grow room too dry or another environmental factor. Don't always believe the worst and assume that your feed strength is wrong.
Stretching Plants can stretch or elongate. This if often the case where you have too much or not enough light or heat due to the positioning of the bulbs. Or it may be just genetics. There is no single reason that can be pinpointed as the cause of your plants stretching don't believe anyone who tells you there is!
Input Air As a hobby grower, for the best results, ideally use indoor air as input air for your grow room and expel to the outside. Outdoor fresh air inputted into the grow room can cause temperature, humidity and bug problems. Indoor air from a house has a better temperature and higher CO2 content, the extracted air should then ideally leave the building or be extracted to another room or area. Don't assume that input air from outside will be "cleaner" or better for your plants it's simply not the case!
Air Cooled Shades In line fans attached cool shades/ Jetstreams/ air cooled lights must blow through the shade. Sucking air through the shade will NOT work as well at cooling your lamp.
pH Adjustment in re-circulating systems in re-circulating hydroponics systems including gro-tanks and particularly when using systems with rockwool slabs and hard water, the pH will often rise on a daily basis. Don't adjust it right down every day or you may end up with nutrient lock out from excess phosphoric acid. Instead don't be afraid to let it drift up for a day or two, this may be the lesser of the two evils. The plants are fragile and as such will be damaged if you attempt to adjust them. Disturb them as little as possible!
Cold Too cold a nutrient solution or air temperature at night (lights Off) can seriously affect your yield. Your yield will benefit by keeping the temperature at stable 21 C.
Katie BrownDavid Hayes Photography
Contemporary Images Photography Omaha
Apogee Photography
Craig Paulson Photography
Award Winning Photography Portfolio
Degrees In Photography
Architectural Photography Equipment
B And H Photography Ny
Artistic Photography By Glenda
Black Nad White Photography
Close Up Photography Equipment
Advanced Images Photography
Art Fashion Photography
Aspen Light Photography
Black And White Landscape Photography
Croteau Photography Manchester Nh
Cliff Watts Photography
Barker Photography San Antonio
Bh Photography New York
Desert Skies Photography
American Photography
Bob Hawkins Photography
Caplin Photography
Black Dog Photography Kansas
Adams Street Photography
David Smith Photography
Debelle Photography
David Glover Photography
Abstract Photography Black White
Chuck Collins Photography
Cupido Photography
Aabbas Photography
Barfield Photography
Craig Anderson Photography
Copyright Photography
Andy Chabot Photography
David Martinez Photography
Deutsche Borse Photography Prize
Cow Photography
Balck White Photography
Cutie Pie Photography
Blind Spot Photography
Black And White Photography Techniques
Aerial Video Photography
Crime Scene Photography Education
Astrophotography Tips
Aerial Photography Houston Texas
Dan Eldon Photography
Ansel Adams Photography Quotes
Ben Fink Shapiro Photography
posted by kids-digital-camerasmwrnuz @ 7:33 PM
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